Left/Right Movement

When a selected mirror is moved to the left by the Mirror Adjustment Switch (X146) the internal contacts move to the "Left/Right Select" and "Move Left or Up" position. The internal solenoid of the selected mirror actuators (M115, M123) is grounded at E201 through the PW, WP, BK and BN wires, the switch contacts, and the B wire. The solenoid is de-energized because the other side of the coil is also grounded at E200 or E201 through the B wire. The de-energized solenoid engages the motor in the actuator with the Left/Right Gearbox. Voltage is applied to the selected mirror actuator's motor at terminal 4 through the SW and PR wires. The selected mirror actuator's motor is grounded at E201 through the PU, BU and BP wires, the switch contacts, and the B wire. The mirror now moves left.

When a selected mirror is moved to the right by the Mirror Adjustment Switch (X146) the internal contacts remain in the "Left/Right Select" position but move to the "Move Right or Down" position. The internal solenoid of the selected mirror actuator (M112, M113) remains de-energized. Voltage is now applied to the selected mirror actuator's motor at terminal 5 through the PU, BU and PB wires. The selected mirror actuator's motor is now grounded at E201 through the PR and SW wires, the switch contacts, and the B wire. Since the polarity of the voltage to the motor has been reversed, the mirror now moves right.